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Cu and Mo re-enrichment during ductile deformation: A case study of the Yuleken porphyry Cu deposit, Eastern Junggar, NW China
Hong, Tao1,2,3,4; Xu, Xing-Wang1,2,4; You, Jun5; Wu, Chu6,7; Li, Hao1,2,4; Ke, Qiang1,2,4
2018-10-01
发表期刊JOURNAL OF ASIAN EARTH SCIENCES
ISSN1367-9120
卷号165页码:285-304
摘要Porphyry Cu deposits can be strongly deformed during subsequent tectonic evolution. To date, research pertaining to the deformation and the enrichment of mineralization in porphyry deposits has suffered from a paucity of proof. Here, we describe the diagnostic petrologic and geochemical signatures of the Yuleken porphyry Cu deposit from stages of metallogenic overprinting. The rocks studied in this work are from deformationmetallogenic structures that have (1) a distinguished metallogenic and tectonic evolution, (2) a three-layer, spatial, deformation-metallogenic structure, (3) distinguishably different fluid components within protomylonite, mylonite, and ultramylonite zones, and (4) variational geochemical characteristics of coexisting chalcopyrite and magnetite. Integrated sulfide and oxide mineral investigations pertaining to the mineral deformation and the trace element variation of the minerals chalcopyrite and magnetite in the Yuleken porphyry Cu deposit indicated that Cu and Mo can be enriched during ductile deformation through physical (analogous geochemical characteristics of chalcopyrite from different stages) and chemical migrations. The elemental variation of magnetite (magnetites from deformed stages have higher contents of Ti, V, Co, Mn, and Ga than those from other stages) and the variation of the fluid components within the protomylonite, mylonite, and ultramylonite zones reveal that the migration and precipitation of Cu, Mo, and Fe were influenced by oxygen fugacity, fluid components, and temperature variation. In conclusion, the arc-related porphyry deposits were able to become involved in the ductile deformation zone, inducing areas of Cu and Mo enrichment in theory. Units subjected to ductile deformation may have great potential for porphyry Cu (-Mo) deposit formation under the influence of magmatism.
关键词Porphyry copper deposit Deformation and element variation LA-ICP-MS magnetite and chalcopyrite
DOI10.1016/j.jseaes.2017.12.004
资助者National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS Knowledge Innovation Project of China ; CAS Knowledge Innovation Project of China ; National 305 Project of China ; National 305 Project of China ; UCAS Joint PhD Training Program of China ; UCAS Joint PhD Training Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS Knowledge Innovation Project of China ; CAS Knowledge Innovation Project of China ; National 305 Project of China ; National 305 Project of China ; UCAS Joint PhD Training Program of China ; UCAS Joint PhD Training Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS Knowledge Innovation Project of China ; CAS Knowledge Innovation Project of China ; National 305 Project of China ; National 305 Project of China ; UCAS Joint PhD Training Program of China ; UCAS Joint PhD Training Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS Knowledge Innovation Project of China ; CAS Knowledge Innovation Project of China ; National 305 Project of China ; National 305 Project of China ; UCAS Joint PhD Training Program of China ; UCAS Joint PhD Training Program of China
关键词[WOS]MASSIVE SULFIDE DEPOSITS ; ZIRCON U-PB ; LA-ICP-MS ; TRACE-ELEMENTS ; CHLORIDE COMPLEXES ; TECTONIC EVOLUTION ; MELT INCLUSIONS ; SILICATE MELTS ; ORE-DEPOSITS ; 2,000 BARS
语种英语
资助项目National Natural Science Foundation of China[41390442] ; National Natural Science Foundation of China[41072060] ; CAS Knowledge Innovation Project of China[kzcx-ew-ly03] ; CAS Knowledge Innovation Project of China[kzcx2-yw-107] ; National 305 Project of China[2011BAB06B03-3] ; National 305 Project of China[2006BAB07B01-03] ; UCAS Joint PhD Training Program of China[UCAS (2015)37]
资助者National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS Knowledge Innovation Project of China ; CAS Knowledge Innovation Project of China ; National 305 Project of China ; National 305 Project of China ; UCAS Joint PhD Training Program of China ; UCAS Joint PhD Training Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS Knowledge Innovation Project of China ; CAS Knowledge Innovation Project of China ; National 305 Project of China ; National 305 Project of China ; UCAS Joint PhD Training Program of China ; UCAS Joint PhD Training Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS Knowledge Innovation Project of China ; CAS Knowledge Innovation Project of China ; National 305 Project of China ; National 305 Project of China ; UCAS Joint PhD Training Program of China ; UCAS Joint PhD Training Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS Knowledge Innovation Project of China ; CAS Knowledge Innovation Project of China ; National 305 Project of China ; National 305 Project of China ; UCAS Joint PhD Training Program of China ; UCAS Joint PhD Training Program of China
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000449447300018
出版者PERGAMON-ELSEVIER SCIENCE LTD
引用统计
文献类型期刊论文
条目标识符http://ir.iggcas.ac.cn/handle/132A11/89446
专题矿产资源研究院重点实验室
通讯作者Xu, Xing-Wang
作者单位1.Chinese Acad Sci, Key Lab Mineral Resources, Inst Geol & Geophys, POB 9825, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
3.Univ Erlangen Nurnberg, GeoZentrum Nordbayern, Schlossgarten 5a, D-91054 Erlangen, Germany
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Shaanxi Ctr Geol Survey, Xian 710068, Shaanxi, Peoples R China
6.China Univ Geosci, Sch Geosci & Resources, Beijing 100083, Peoples R China
7.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Sci Res Inst, Beijing 100083, Peoples R China
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Hong, Tao,Xu, Xing-Wang,You, Jun,et al. Cu and Mo re-enrichment during ductile deformation: A case study of the Yuleken porphyry Cu deposit, Eastern Junggar, NW China[J]. JOURNAL OF ASIAN EARTH SCIENCES,2018,165:285-304.
APA Hong, Tao,Xu, Xing-Wang,You, Jun,Wu, Chu,Li, Hao,&Ke, Qiang.(2018).Cu and Mo re-enrichment during ductile deformation: A case study of the Yuleken porphyry Cu deposit, Eastern Junggar, NW China.JOURNAL OF ASIAN EARTH SCIENCES,165,285-304.
MLA Hong, Tao,et al."Cu and Mo re-enrichment during ductile deformation: A case study of the Yuleken porphyry Cu deposit, Eastern Junggar, NW China".JOURNAL OF ASIAN EARTH SCIENCES 165(2018):285-304.
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